During the start sequence the MCM-20 / IOM-20 module operates the solenoid valves (014) and
(016). The control air from the control air inlet (017) opens the control valve (001) through the
solenoid valve CV7014C (014) and releases the pressure in the valve space (002). The valve
(007) opens and starting air from the inlet chamber (012) flows through the non-return valve
(010) to the starting air outlet (011).
When the control valve (001) closes, starting air flows through the balance bores (009) and fills
the inlet chamber (012) again. The valve (007) closes.
The starting air shut-off valve has a test valve. You can use this test valve for a function check
of the starting air shut-off valve.
X92DF
AA00-4325-00AAA-043A-A
Operation Manual Starting air shut-off valve
Winterthur Gas & Diesel Ltd.
- 195 - Issue 002 2020-08
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